Fluid-pressure coupling.



l (Application mea Nov. 81,1901.; (HUMMEL) l 2 Sheds-Sheet 2.

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me Hormis Ferias con lma'fo-Lm-lo.A wsmunmu. D. c.

UNITEDy STATES' PATENT FFIC.

A WILLIAM H' SIMMONS 0F ALEXANDRIA, VIRGINIA.y

FLUIDfPREssu RE rcon PLING.

sPEcIFrcATIoN forming part of Letters 'Patenelva voalezuatea .ruhe 17, 1902.

` .iteration tied November s, 1901',l -seal No. 81,593. (No modell) To all whom, ,it may concern:

Be it known-that I, WILLIAM H..-S,IMM0N S,

a citizen of the United States, residing at Al,- exandria, in the county of, Alexandria and State of Virginia, 'have invented certain new and useful Improvements in Fluid-Pressure Couplings; andI -dodeclare the followingto g be a full, clear, and exact Vdescription of the invention, such as will enable others skilled in the art to which itqappertains to make and use the same, reference being had to the ac companying drawings, and to the letters of' reference marked thereon, which form a part of this specification.:v Y, f

This invention relatesto new air-brake pipes; andlit consists `in the provithe passage-way through thecoupling-ends.

More specifically, the invention 'consists-in combination with the-"draw-head iof: a carcoupler, of spring-actuated boxings which' are tapered to receive a coupling-head which is to be connected thereto, valves'car'ried by the coupling-heads adapted tobeautomatic? ally opened as the Couplings arebroughtto;

gether and closed as nected. u I i The invention will be hereinafter' more fully described and thenl specicallyedeiined in the appended claims, and isfclearly illus the couplings aregdislcontrated in the accompanying,drawings,which,

with the letters of reference marked thereon,

form a part of this application, and'in which" drawings similar lettersof reference indicate' like parts of the several views, in whieh-g Figure l is a top plan view showingmy im' proved couplers for Huid"- pressure "pipes locked together. Fig. 2 is a sectional view on line 2 2 of Fig'l. Fig. 3 is an end elevation of one of 'the coupling-heads. Fig. 4 is a horizontal sectional view of the couplingheads fastened together.

Reference now being had to the details of the drawings by letter, A designates a drawhead to which any form of car-coupler may be connected, and on each side of the drawhead are recesses A', one of which contains and useful improvements'in fluid-pressure couplingsfforVv a boxing'B2, whichhas a'recess4V with tapering wall's;thereto`, :thebottom of said recess be- .ing afiiexible.cushionl),v and mounted in an :aperture E'and supported 'by the rear wall of saidboxingis a pin'E', which projects through intoY said recess and'through an aperture in .s aidjeu'shiomjiSaid apertureabout the pin communicates witha duct F2, entering the boxing from its lower end. Mounted in said passage-way is a pipe F, to the lower end of which pipe connection is made with a tubing F', which communicates with the main pipe running underneath the cars and to the pump in the. engine. This tubing contains a ball- `'valve G, whichis normally supported upon a pinG', passed through the wall of said tube at any convenientnlocation, and said ball is vadaptedtoseat against a tapering shoulder 'Hiatfthe'up'per end 0f the tube when air- 'pressure isA exerted upon the ball-valve suficiently to force the vsame against said seat,

lthuspreventing the escape of air through the aperture kabout saidv ,pin and to the outside atmosphere.; Saidjtubing, which is fastened .to and communicates vwith the passage-way in the boxing,,is1adapted toreciprocate through an aperture inthe bottom wall of the recessed portioninlwhichsaid boxing is located. A springK is mounted in'a socket member K',

andl its upper-end is adapted to bear against the endrsurface of said boxing, whereby the latter isiallowed to yield'fin receiving a coup- ,ling-head held at dilerent heights. ",Onythe oppositefside of the draw-head is a coupling-head "J, which is 'mounted in a similar recessed .portion, a s described, on the oppositeside, saidf'h'eadhaving a tapered end J," ada 'tedfto enter-ata erin01 recess of a a P P e `box,f'as described, as two cars with similarly- `arranged f `couplings `come together. lcoupli'ngghead .I has laduct L leading -from the`ti1bingM,'"`whi'chis linserted in said duct,

Said

in which isllocated afball-valve N.. The rearwardl movement of said ball-valve 'is limited by means of a pingNhwhileits outer-@moveh ment is limited by means of beveled seat or collar O. A spring Q iswinterposedbetween the rear end of 'said vcoupling-'headJ 'and the rear wall of the recess, in which said-head is mounted, which spring is provided t0 allow a longitudinal movement of the couplinghead when the endsl to be coupled come to- IOO gether. To the lower end of the pipe or tubing connected to the coupling-head .l is a pipe B, which is connected to the main line before described.

3y reason of the boxing having a recess with tapered walls, in which a coupling-head with tapering end comes in contact, it will be observed that the tapering coupling-head will be guided by the taperingwalls of the recess in said boxing, and the pin projecting through the bottom of the boxing will be guided through the aperture in the tapering end of the coupling J, thus holding the ball-valve from seating and allowing the air under pressure to be forced through the couplings from one draw-head to the other. By reason of the peculiar construction of my improved couplings it will be observed that provision is made for allowing the cars to turn on curves without impairing the efficiency at all of the coupling.

Having thus described my invention, what I claim to be new, and desire to secure by Letters Patent, is-

1. A fluid-pressure coupling for pipes, comprising in combination with the heads of drawbars, recessed on opposite sides of its carcoupler a boxing seated in one of said recesses, and a coupling-head in the other, a passage-way leading through said boxing and a pipe communicating with said passage-way, ball-valve in said pipe, and a valve-seat at the inner end of said pipe, a valve-regulated pipe connected to said coupling-head, a Valve in the coupling-head, and means carried by said boxing for holding said valve in the coupling-head from seatingas two draw-heads similarly equipped with couplings come together, as set forth.

2. A iiuid-pressu re coupling for pipes, comprising in combination with a draw-head, recessed on opposite sides of the car-coupler mounted on said draw-head, a boxing seated in one of said recesses, said boxing being spring-actuated having a vertical play, a pipe secured to said boxing and having communication with a passage-way therein, a valve in said pipe, a valve-seat near the inner end of said pipe, a coupling-head in the other of said recesses, a pipe secured to said head and communicating with a passage-way in the head, the outer end of the coupling-head being tapered, a ball-valve positioned in said tapering end, and means in said boxing for holding the ball-valve open when two draw-heads equipped with similarly constructed couplings come together, and the car-couplers for holding the pipe-couplings connected, a's set forth.

3. A fluid-pressure pipe-coupling, comprising in combination with the draw-heads of carcouplings, each draw-head having recesses on its coupling edge,a boxing seated in one of said recesses, the outer face of said boxing being recessed and having tapered Walls, a cushion forming the bottom of said recess in the boxing, a fixed pin projecting through a central aperture in said cushion with a space about same, a pipe connected to the boxing and communicating with a passage-way therein, the latter leading to the aperture in said cushion, a ball-valve in said pipe, a valve-seat at the inner end of the pipe, a spring on which the boxing is mounted, a coupling-head springactuated and seated in the other recess, the outer end of the head heilig tapered, a Valveseat at the apex of said tapered portion about an aperture in the head, a pipe connected to said head and communicating with a passageway in the head, which passage-way leads to and communicates through said aperture in the tapered portion of the said pipes adapted to be connected to the main air-supply pipe, as set forth.

In testimony whereof I hereunto ai'lix my signature in presence of two witnesses.

VILLAM Il. SIMMONS.

Witnesses:

A. L. Houd-H, MARY i?. 'lANNna 

